• 제목/요약/키워드: Indoor pollution

검색결과 477건 처리시간 0.034초

도시에 있어서 연도오염에 관한 연구 (1) 동경도 연도가정의 $NO_2$ 농도 측정 (A Study on the Air Pollution Around a Major Trunk Road in Urban Area (1) Measurements of $NO_2$ Concentrations in Homes Along the Major Arterial Roads in Tokyo)

  • 손부순
    • 한국환경보건학회지
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    • 제21권3호
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    • pp.107-114
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    • 1995
  • To assess the contribution of automobile exhaust to indoor and outdoor levels of $NO_2$ around a major trunk road in Tokyo, $NO_2$ levels of 200 homes were measured at living rooms, kitchens and outdoor at each season, from the summer of 1990 to the spring of 1991, $NO_2$ level was measured for four days using diffusion $NO_2$ dosimeter. Outdoor $NO_2$ levels at each season and indoor $NO_2$ levels at seasons when heaters were not used decreased according to the distance from the roadside. The differences between $NO_2$ levels at zone I(within 20m from the roadside) and zone III(beyond 50m) was about 3 ppb. Automobile exhaust seemed to contribute to this difference. At seasons when heaters were used, indoor $NO_2$ levels of the homes equipped with vented heater, decreased according to the distance from the roadside. However, there was no correlation between indoor levels and the distance from the roadside at homes equipped with unvented heater.

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수도권 지하철 지하역사의 실내공기질 연구 (Study on the Air Quality of Metropolitan Subway Stations)

  • 조영민;박덕신;박병현;박은영
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2005년도 춘계학술대회 논문집
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    • pp.77-82
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    • 2005
  • Recently, people's rising interests toward a 'well-being' lifestyle together with research contributions are accelerating the concerns regarding indoor air pollution making indoor air quality management an emerging environmental challenge of the era. The Ministry of Environment began to regulate the air quality of railway stations last year. The newly established 'Indoor Air Quality Act' covers 17 facilities whereas only underground subway stations and underground markets were regulated by previous 'Underground Air Quality Management Act' of 1996. In this study, we carried out the measurement of temperature, relative humidity, CO(carbon monooxide), $CO_2$(carbon dioxide), HCHO(formaldehyde), PM-10(particulate matters), and VOCs(volatile organic compounds) in underground subway stations. Based on the obtained results, we will suggest a way to improve the indoor air quality of the subway stations.

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Simulated Study on Typical Sources of Volatile Organic Compounds (VOCs) in Indoor Air

  • Dai, Shugui;Bai, Zhipeng;Zhu, Tan;Zhang, Lin
    • 분석과학
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    • 제8권4호
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    • pp.745-751
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    • 1995
  • In this paper, several simulated devices were constructed for determining components of organic vapors emitting from decorative materials, daily use chemicals and from common behavior of human beings, such as smoking and cooking. The VOCs were preconcentrated on activated carbon and then desorbed by carbon disulphide. The results were obtained by GC/MS analysis and computer searching. It can be concluded that the categories of the sources and the components of organic vapors in indoor air are very complicated, and different sources of VOCs in indoor air have their own emission characteristics.

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광합성 세균 희석 비율에 따른 시멘트 경화체의 응결 특성 (Setting time properties of cement matrix according to photosynthetic bacterial dilution ratio)

  • 편수정;김대연;임정준;이상수
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2018년도 추계 학술논문 발표대회
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    • pp.89-90
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    • 2018
  • In recent years, harmful substances and fine dust in the air are caused by respiratory and cardiovascular diseases through various mechanisms when they are introduced into the human body through respiration, thereby exacerbating human health and causing cancer by prolonged exposure do. In order to prevent such fine dust from being introduced into the room and to improve indoor air quality, improvement of air quality has attracted attention. Among indoor air pollutants, fine dust and CO2 are pollutants that are directly affected by indoor number and activity. The purpose of this study is to evaluate the basic performance of cement matrix using photosynthetic bacteria as a basic study of fine dust and CO2 adsorption type matrix to suppress indoor air pollution and improve air quality.

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안트라사이트 입도에 따른 시멘트 경화체의 공기량 및 유동성 특성 (Air Content and Fluidity Properties of Cement Matrix according to Anthracite Particle-size)

  • 경인수;편수정;이상수
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2017년도 추계 학술논문 발표대회
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    • pp.92-93
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    • 2017
  • Recently, there has been an increasing interest in natural radioactive gas radon(Rn-222), the problem of indoor air quality pollution to worldwide. It has been scientifically proven to be hazardous to various diseases such as lung cancer and skin cancer if the human body is exposed to long-term accumulation of atomic nuclei due to the destruction of radon and alpha lines. Based on the indoor air quality control policy, this study is a basic experiment in the manufacture of a selective elimination function to containing radon adsorption and reduction of radon concentration, which is used to absorb radioactive isotopes such as phosphorus and radon in indoor environment.

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Bake-Out에 의한 신축 아파트의 실내 오염물질농도 저감효과 평가 (The Impact of Bake-Out Method on the Reduction of Pollutant Concentration in New Apartments)

  • 방승기;박병윤
    • 설비공학논문집
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    • 제18권4호
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    • pp.335-343
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    • 2006
  • Indoor air pollution has been significantly aggravated due to hazardous pollutants emitted from petrochemical finishing materials in new apartments. Pollutants emitted into indoor environment have significant effects on the health of occupants, causing undesirable symptoms related to sick building syndrome such as headache, dizziness, difficulty in concentration, etc. Therefore, this paper attempted to investigate the reduction effect of bake out on VOCs emission in new apartments. Experiments were carried out in three households, one of which was naturally ventilated. The naturally ventilated showed the lowest indoor pollutant concentration and also showed the highest reduction rate by the use of bake out. The most desirable result was observed when the household was naturally ventilated after bake out. More detailed experiments are expected to be carried out afterwards on the prediction of reduction rate of each pollutant.